(nynorsk) vendepunkt betyr engelsk

point of inflection▼(point on a curve)
noun
[UK: pɔɪnt əv ɪn.ˈflek.ʃn̩] [US: ˈpɔɪnt əv ˌɪn.ˈflek.ʃn̩]

turning point [turning points]▼(decisive point)
noun
[UK: ˈtɜːn.ɪŋ pɔɪnt] [US: ˈtɝːn.ɪŋ ˈpɔɪnt]